{"id":"CVE-2011-2549","aliases":["EUVD-2011-2532","GHSA-hw43-vchf-c8qg"],"status":"published","title":"Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services...","description":"Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services Routers (ASR) 9000 series devices allows remote attackers to cause a denial of service (line-card reload) via an IPv4 packet, aka Bug ID CSCtr26695.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01702,"percentile":0.77392,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2011-07-28T22:00:00Z","modified":"2026-06-16T23:31:34Z","products":[{"vendor":"cisco","product":"asr_9006_router"},{"vendor":"cisco","product":"asr_9010_router"},{"vendor":"cisco","product":"ios_xr"}],"references":[{"url":"http://www.securityfocus.com/bid/48811","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080b89155.shtml","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/68733","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://securitytracker.com/id?1025811","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://secunia.com/advisories/45333","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-2549"},{"url":"https://github.com/advisories/GHSA-hw43-vchf-c8qg"}],"sources":{"cve":[{"id":"CVE-2011-2549","description":"Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services Routers (ASR) 9000 series devices allows remote attackers to cause a denial of service (line-card reload) via an IPv4 packet, aka Bug ID CSCtr26695.","status":"published","published":"2011-07-28T22:00:00Z","modified":"2024-08-06T23:08:22.92Z","updated_at":"2026-11-02T14:35:36.968002Z"}],"euvd":[{"id":"EUVD-2011-2532","description":"Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services Routers (ASR) 9000 series devices allows remote attackers to cause a denial of service (line-card reload) via an IPv4 packet, aka Bug ID CSCtr26695.","status":"published","published":"2011-07-28T22:00:00Z","modified":"2024-08-06T23:08:22Z","updated_at":"2026-11-03T01:39:55.11051Z"}],"ghsa":[{"id":"GHSA-hw43-vchf-c8qg","title":"Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services...","description":"Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services Routers (ASR) 9000 series devices allows remote attackers to cause a denial of service (line-card reload) via an IPv4 packet, aka Bug ID CSCtr26695.","status":"published","published":"2022-05-17T01:54:54Z","modified":"2023-02-03T05:06:00Z","updated_at":"2026-11-02T14:53:49.735091Z"}],"nvd":[{"id":"CVE-2011-2549","description":"Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services Routers (ASR) 9000 series devices allows remote attackers to cause a denial of service (line-card reload) via an IPv4 packet, aka Bug ID CSCtr26695.","status":"published","published":"2011-07-28T22:55:02.187Z","modified":"2026-06-16T23:31:34.687Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:02:09.182398Z"}]}}